3 years ago

Simplify y^-2/y^-7. Write your answer with a positive exponent only.

Mathematics

2 answers:

Vaselesa [24]3 years ago

6 0

Answer:

y^2

Step-by-step explanation:

One way of doing this problem is to multiply both numerator and denominator by y^7. Doing this we get:

y^(-2+7)

--------------- = y^2

y^(-7+7)

attashe74 [19]3 years ago

4 0

Answer:

y^5

Step-by-step explanation:

y^-2/y^-7

When we divide exponents with the same base, we subtract the exponents

y^ ( -2 - -7)

y^ ( -2+7)

y^ 5

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Read 2 more answers

What is the nth term of the geometric sequence 4, 8, 16, 32, ... ?

Morgarella [4.7K]

Geometric is
$a_n=a_1r^{n-1}$
an=nth term
a1=first term
r=common ratio
n=which term

commmon ratio is like
a1 times r=a2
4 to 8
4 times 2=8
r=2
first term is 4
therefor

$a_n=4(2)^{n-1}$
the nth term is $4(2)^{n-1}$

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3 years ago